nsScriptElement.h

/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Mozilla Code. * * The Initial Developer of the Original Code is * Mozilla Corporation. * Portions created by the Initial Developer are Copyright (C) 2006 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Jonas Sicking <jonas@sicking.cc> (original developer) * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */#include "nsIScriptLoaderObserver.h"#include "nsIScriptElement.h"#include "nsStubMutationObserver.h"#include "prtypes.h"/** * Baseclass useful for script elements (such as <xhtml:script> and * <svg:script>). Currently the class assumes that only the 'src' * attribute and the children of the class affect what script to execute. */00049class nsScriptElement : publicnsIScriptElement,
publicnsStubMutationObserver
{
public:
// nsIScriptLoaderObserver
NS_DECL_NSISCRIPTLOADEROBSERVER
// nsIMutationObserver
NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
protected:
// Internal methods /** * Check if this element contains any script, linked or inline */virtual PRBool HasScriptContent() = 0;
/** * Processes the script if it's in the document-tree and links to or * contains a script. Once it has been evaluated there is no way to make it * reevaluate the script, you'll have to create a new element. This also means * that when adding a src attribute to an element that already contains an * inline script, the script referenced by the src attribute will not be * loaded. * * In order to be able to use multiple childNodes, or to use the * fallback mechanism of using both inline script and linked script you have * to add all attributes and childNodes before adding the element to the * document-tree. */virtual nsresult MaybeProcessScript();
};